@phdthesis{Burkart1998,
  author      = {Michael Burkart},
  title       = {Die Gr{\"u}nlandvegetation der unteren Havelaue in syn{\"o}kologischer und syntaxonomischer Sicht},
  type        = {doctoralthesis},
  pages       = {[18], 157, A102 S. : graph. Darst., Kt.-Beil.},
  year        = {1998},
}